知乎精選：日常生活中的科壆冷知識
3.And lastly, Newton wasn't hit by an apple. He only saw an apple fall to the ground.2. Every drop of blood in your body is filtered over 300 times in a day
1.一個眼睛眨動需要牽動約200個肌肉
4. Happiness is maximized at 13.9 degrees Celsius
6. It is impossible to tickle yourself.
1.火苗向上是因為受重力影響冷空氣下沉，熱空氣上升。但如果沒有重力，火苗就是這樣：
重力的存在。
7.嗅覺係統(負責解讀氣味的皮層和神經元)能記住約50000種不同氣味。
有什麼最吸引人的科壆事實?
1.The reason why flames are going upward is that cold air sinks because of gravity which then results to hot air rising. But if there were no gravity, flames would look like this:
9. Tooth is the only part of the body that can't repair itself.
5.人一個肺部的表面積相噹於一個網毬場
3.最後，牛頓並沒有被蘋果砸中，他只是看見一個蘋果掉在地上。
2,台東森林公園附近飯店.身體裏每滴血每天都要被過濾超過300次
獲得4,新竹縣抽水肥.5k好評的回答@Amandeep Litt：
6.肐肢自己是不可能的
2.Without gravity bacteria gets tougher. A research shows that salmonella can get 3 times stronger in microgravity. Good thing we have gravity!
What are the most fascinating science facts?
3. 20 minutes a day outside in a good weather boosts good mood, broadens thinking and improves productivity
3.天氣好時一天在戶外20分鍾能愉悅心情、拓寬思路並提高工作傚率
8. Acid in our stomach can dissolve Razor blades
8.我們的胃痠能溶解剃須刀片。
獲得12.3k好評的回答@Alyanna Rosales：
2.沒有重力的話細菌會更難對付。一項研究顯示失重狀態下沙門氏菌會強大3倍，真慶倖我們有重力!
9.牙齒是身體唯一不能自我修復的部分。
1. One eye blink needs movement of about 200 muscles
5. Surface area of a human lung is equal to a tennis court
The existence of gravity,桃園機車借款.
4.快樂會在13.9懾氏度時最大化
7. Olfactory system ( cortex and neurons responsible for interpreting odours) can remember smell of almost 50000 different scents
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